Observation + evidence and correlated.
Once Hans was hurt with the modern mechanic and needed to change he refused so I started to study what was going on.
I went with my observation and then correlated that with the evidence.
What people said (theory) and the instruction taught wasn't a match for the observation and evidence I had collected.
So I went with what I found, then had to develop a skill acquisition teaching as people did struggle with conceptual teachings. As far I have released my grip which makes golf easier with a natural release. A modern golf grip, putting your thumb on shaft creates a need for a held off compensation that adds more timing and coordination. They all been teaching us that for 120 years.
Naturally your taught things with golf that you now have an issue to change your mind about that. You assume, you believe and your faith is unwavering and now golf becomes a religion and your either a priest or a fanatic follower.
I just went with science and followed the evidence as Alice did and found out how it works and changed my mind about golf along the way.